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G.A CASSADY.

. 41.00K PoR SLIDING DOORS. N0. 316,115. l Patented Apr. 21,1885.

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INTTELD STATES PATENT Erice.

LOCK FOR SLIDING DOORS."

SPECIFICATION forming part of Letters Patent No. 316,115, dated April 21, 1885.

Application filed September 27, 1884.

To all. whom t may concern:

Be it known that I, GEORGE OassADY, a citizen of the United States, and a resident of Valley Springs, in the county of Minnehaha and the Territory of Dakota, have invented certain new and useful Improvements in Locks for Sliding Doors, of which the following is a specification.

Figure lis a front view, and Fig. 2 is a horizontal sectional plan view,of a freight-car door with my improvement attached thereto. Figs. 3 and 4 are sectional details illustrating more fully the operation of the fastener. Fig. 5 is a detached perspective view of the spring-bolt7 or catch, and Fig. 6 is a similar view of the push-bolt.

This device is applicable to any form of sliding door, and under some circumstances may be applied to swinging doors; but is more particularly adapted to the doors of railroad freight-cars, on one of which, for the purpose ofillustration in the drawings, I have shown the fastener arranged.

A represents the frame of the car, and B the door, arranged to slide back and forth in ways or guides O D in the ordinary manner.

Attached to the rear of the door B is a spring-ban7 E, having a barbed or hooked end, a, projecting beyond the edge of the door, and adapted` when the door is closed, to catch over an inclined lip77 or lock-strike, b, attached to thejamb F ofthe door. This lip or strike may be formed in any suitable manner, according to the various forms and arrangements ofthe frame and door,but for the purpose of illustration I have shown it formed in one piece with a hollow chamber or casing, G, set into the jamb F.

H is a push bolt or pin set through the 4o jamb F and casing G,and provided on the interior of the casing with an enlarged head, d. to prevent the push-bolt from being pulled out. The outer face of the barb or hook a is adapted, when the door is closed, to rest beneath the head d of the push-bolt H, as shown in Fig. 3. Outside the jamb F the push-bolt H is perforated with a slot or hole, e, through which a lock-hasp or a sealing-strip, g, may be passed, to prevent the push-bolt being pushed inward, as hereinafter explained. When the door is to be closed,it is only necessary to push it shut, when the barb a of the spring-bar E will catch over the lip or strike b and hold the door closed. Then, to open (No model.)

the door it is only necessary to push inward on the push-bolt H, which will disconnect the spring-bar and its barbed end from the strike b, as shown in Fig. 4, and leave the door free to be drawn backward and opened. If it is desired to lock the door shut, this may be done by simply passing the hasp of a lock or a sealstrip, g, through the slot e, which will prevent the push-bolt H from being pushed inward.

lSimple strips of tin or other metal with a lead or other soft-metal rivet, h, (the rivet having some distinctive mark upon it,) or some such form ot' seal-locks, 7 are very largely used to secure freight-car doors; and in practice the perforation c through the pushbolt H will be made to receive whatever form of lock or seal the railroad or other company owning or operating cars may desire.

When used for barn or warehouse doors,the perforations e will usually be adapted to receive the hasp of a padlock, or a thin flat key may be passed through the push-bolt H and a lock attached to the key to prevent its removal, or any other suitable means may be used to lock the push-bolt H outward. The push-bolt H is shown with a knob, t, on its outer end to render it easierto be pushed inward. l

Having thus described my invention, what I claim as new is l. The combination. of a sliding door, a spring-bar provided with a hooked end attached thereto, a doorjamb, a lip or strike secured to said jamb with which said hooked end engages, a sliding push-bolt which passes through said jamb and is adapted when pressed inward to disengage said hooked end from said lip or strike, said push-bolt being slotted or perforated, and a seal or lock which passes through said slot or perforation and thus prevents the movement of said pushbolt. l

2. The combination of the door A, hooked spring-bar a, strike b, push-bolt H, having perforation e, and seal g, substantially as set forth.

IOO

In testimonywhereof I have set my hand in presence of two subscribing witnesses.

GEORGE cAssADY.

Witnesses:

W. H. RIDDELL, CHARLES PATTINGER. 

